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- 870Biological Sciences, Department of/Journal Articles (Biological Sciences)
- 419Biological Sciences, Department of/BioSci OER
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- 73Biological Sciences, Department of/Research Data and Materials (Biological Sciences)
- 419University of Alberta, Department of Biological Sciences
- 81Mark A. Lewis
- 52Lewis, Mark A.
- 52Stockey, R.A.
- 23Wishart, D.S.
- 21Rothwell, G.W.
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Contributions to the Life History, Host Range, and Distribution of Necremnus tidius (Hymenoptera: Eulophidae)
Download2007
Dosdall, L. M., Gibson, G. A. P., Keddie, B. A., Ulmer, B. J., Olfert, O.
Abstract: Field and laboratory studies investigated the preimaginal developmental time, adult emergence phenology, mating behavior, and weevil hosts of Necremnus tidius (Walker) (Hymenoptera: Eulophidae), a solitary ectoparasitoid of coleopteran larvae. In addition, changes in parasitism levels...
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1992-01-01
Caceres, J.F., McKenzie, D.I., Thimappaya, R., Lund, E., Dahlberg, J.E.
The expression of mouse embryonic U1 snRNA (mU1b) genes is subject to stage- and tissue-specific control, being restricted to early embryos and adult tissues that contain a high proportion of stem cells capable of further differentiation. To determine the mechanism of this control we have sought...
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2010
Lindgren, Johan, Konishi, Takuya, Chiappe, Luis M., Caldwell, Michael W.
Mosasaurs (family Mosasauridae) are a diverse group of secondarily aquatic lizards that radiated into marine environments during the Late Cretaceous (98–65 million years ago). For the most part, they have been considered to be simple anguilliform swimmers – i.e., their propulsive force was...
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2002
Schmiegelow, F. K. A., Hannon, S. J.
Abstract. Building or maintaining corridors in fragmented landscapes may be an important method to conserve gap-sensitive species that avoid crossing gaps in forest cover. We tested the effectiveness of corridors by examining the changes in abundance of boreal birds pre- and post-logging in...
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Cost of filtration DATA for 5 demosponges - Data associated with: Ludeman, Reidenbach and Leys - JEB 2017 The energetic cost of filtration by demosponges and their behavioural response to ambient currents
Cost of filtration DATA for 5 demosponges - Data associated with: Ludeman, Reidenbach and Leys - JEB 2017 The energetic cost of filtration by demosponges and their behavioural response to ambient currents
Download2017-02-14
Abstract: Sponges (Porifera) are abundant in most marine and freshwater ecosystems and as suspension feeders they play a crucial role in filtering the water column. Their active pumping enables them to filter up to 900 times their body volume of water per hour, recycling nutrients and coupling a...
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Could the lateral transfer of nutrients by outbreaking insects be a relevant landscape-level biogeochemical process?
Download2016-01-01
Parrott, Lael, Landry, Jean-Sébastien
The processes that transfer nutrients laterally over large distances are limited within ter-restrial ecosystems. Here, we present the hypothesis that outbreaking insects can sometimes transport consequential amounts of embodied nutrients over long distances, thereby connecting ecological...
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Coupling mountain pine beetle and forest population dynamics predicts transient outbreaks that are likely to increase in number with climate change
Download2023-09-27
Mountain pine beetle (MPB) in Canada have spread well beyond their historical range. Accurate modelling of the long-term dynamics of MPB is critical for assessing the risk of further expansion and informing management strategies, particularly in the context of climate change and variable forest...
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2001
Sullivan, C.V., Stacey, N.E., Salek, S.J., Godwin, J.
Special arenas were used to observe and describe courtship and spawning behavior of captive striped bass Morone saxatilis, white bass Morone chrysops, and white perch Morone americana. To induce final gonadal maturation and spawning, fish were either implanted with gonadotropin-releasing hormone...
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2003
Beautifully preserved, nearly complete theropod skeletons from Alberta (Canada) allow re-evaluation of the taxonomic status of North American tyrannosaurids. It is concluded that the most parsimonious interpretation of relationships leads to the separation of the two species of Albertosaurus...